Author Question: Which nonselective alpha-adrenergic blocking agent is still used? A) Metoprolol B) Propranolol ... (Read 70 times)

jwb375 · **on:** Jul 23, 2018

Which nonselective alpha-adrenergic blocking agent is still used?

A) Metoprolol
B) Propranolol
C) Timolol
D) Phentolamine

Question 2

A 16-year-old youth has just been diagnosed with schizophrenia. The parents ask the nurse what causes schizophrenia. What would be the nurse's best response?

A) Schizophrenia is caused by pain that the brain perceives.
B) Schizophrenia is thought to occur due to trauma experienced in childhood.
C) Schizophrenia is thought to reflect a fundamental biochemical abnormality.
D) Schizophrenia is caused by seizure activity in the brain.

sierramartinez · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

D
Feedback:
Of the nonselective alpha-adrenergic blocking agents, only phentolamine is still used today. Metoprolol is a beta1-selective adrenergic blocking agent. Timolol and propranolol are nonselective beta-adrenergic blocking agents.

Answer to Question 2

C
Feedback:
This disorder, which seems to have a very strong genetic association, may reflect a fundamental biochemical abnormality. Mental disorders are now thought to be caused by some inherent dysfunction within the brain that leads to abnormal thought processes and responses. Schizophrenia is not caused by pain, childhood trauma, or seizure activity.